GENERAL DESCRIPTION
The MSM6411A, implemented in complementary metal-oxide semiconductor technology, is a low-power CMOS 4-bit microcontroller developed for smaller-scale control systems.

FEATURES
• ROM : 1024 words x 8 bits
• RAM : 32 words x 4 bits
• I/O port
    Input-output port : 2 ports x 4 bits
    Input port : 1 port x 3 bits
• 8-bit serial shift register
• 2 interrupt sources (1 external, 1 internal)
• 63 instructions
• Power-down features
• Minimum instruction execution time : 952 ns @ 4.2 MHz clock
• Single 5 V power supply
• Package:
    16-pin plastic DIP (DIP16-P-300-2.54) : (Product name : MSM6411A-··RS)
·                                                                  xx  indicates a code number.